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linux-next/drivers/hid/hid-wiimote-modules.c
Cyan Ogilvie d30596737e HID: wiimote: Fix wiimote mp scale linearization 
The wiimote motion plus gyros use two scales to report fast and slow
rotation - below 440 deg/s uses 8192/440 units / deg/s, and above uses
8192/2000 units / deg/s.

Previously this driver attempted to linearize the two by scaling the fast
rate by 18 and the slow by 9, but this results in a scale of
8192*9/440 = ~167.564 for slow and 8192*18/2000 = 73.728 for fast.

Correct the fast motion scale factor so that both report ~167.564
units / deg/s

Signed-off-by: Cyan Ogilvie <cyan.ogilvie@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-03-18 17:31:38 +01:00

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/*
* Device Modules for Nintendo Wii / Wii U HID Driver
* Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
/*
* Wiimote Modules
* Nintendo devices provide different peripherals and many new devices lack
* initial features like the IR camera. Therefore, each peripheral device is
* implemented as an independent module and we probe on each device only the
* modules for the hardware that really is available.
*
* Module registration is sequential. Unregistration is done in reverse order.
* After device detection, the needed modules are loaded. Users can trigger
* re-detection which causes all modules to be unloaded and then reload the
* modules for the new detected device.
*
* wdata->input is a shared input device. It is always initialized prior to
* module registration. If at least one registered module is marked as
* WIIMOD_FLAG_INPUT, then the input device will get registered after all
* modules were registered.
* Please note that it is unregistered _before_ the "remove" callbacks are
* called. This guarantees that no input interaction is done, anymore. However,
* the wiimote core keeps a reference to the input device so it is freed only
* after all modules were removed. It is safe to send events to unregistered
* input devices.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include "hid-wiimote.h"
/*
* Keys
* The initial Wii Remote provided a bunch of buttons that are reported as
* part of the core protocol. Many later devices dropped these and report
* invalid data in the core button reports. Load this only on devices which
* correctly send button reports.
* It uses the shared input device.
*/
static const __u16 wiimod_keys_map[] = {
KEY_LEFT, /* WIIPROTO_KEY_LEFT */
KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
KEY_UP, /* WIIPROTO_KEY_UP */
KEY_DOWN, /* WIIPROTO_KEY_DOWN */
KEY_NEXT, /* WIIPROTO_KEY_PLUS */
KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
BTN_1, /* WIIPROTO_KEY_ONE */
BTN_2, /* WIIPROTO_KEY_TWO */
BTN_A, /* WIIPROTO_KEY_A */
BTN_B, /* WIIPROTO_KEY_B */
BTN_MODE, /* WIIPROTO_KEY_HOME */
};
static void wiimod_keys_in_keys(struct wiimote_data *wdata, const __u8 *keys)
{
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_LEFT],
!!(keys[0] & 0x01));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_RIGHT],
!!(keys[0] & 0x02));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_DOWN],
!!(keys[0] & 0x04));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_UP],
!!(keys[0] & 0x08));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_PLUS],
!!(keys[0] & 0x10));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_TWO],
!!(keys[1] & 0x01));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_ONE],
!!(keys[1] & 0x02));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_B],
!!(keys[1] & 0x04));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_A],
!!(keys[1] & 0x08));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_MINUS],
!!(keys[1] & 0x10));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_HOME],
!!(keys[1] & 0x80));
input_sync(wdata->input);
}
static int wiimod_keys_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned int i;
set_bit(EV_KEY, wdata->input->evbit);
for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
set_bit(wiimod_keys_map[i], wdata->input->keybit);
return 0;
}
static const struct wiimod_ops wiimod_keys = {
.flags = WIIMOD_FLAG_INPUT,
.arg = 0,
.probe = wiimod_keys_probe,
.remove = NULL,
.in_keys = wiimod_keys_in_keys,
};
/*
* Rumble
* Nearly all devices provide a rumble feature. A small motor for
* force-feedback effects. We provide an FF_RUMBLE memless ff device on the
* shared input device if this module is loaded.
* The rumble motor is controlled via a flag on almost every output report so
* the wiimote core handles the rumble flag. But if a device doesn't provide
* the rumble motor, this flag shouldn't be set.
*/
/* used by wiimod_rumble and wiipro_rumble */
static void wiimod_rumble_worker(struct work_struct *work)
{
struct wiimote_data *wdata = container_of(work, struct wiimote_data,
rumble_worker);
spin_lock_irq(&wdata->state.lock);
wiiproto_req_rumble(wdata, wdata->state.cache_rumble);
spin_unlock_irq(&wdata->state.lock);
}
static int wiimod_rumble_play(struct input_dev *dev, void *data,
struct ff_effect *eff)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
/*
* The wiimote supports only a single rumble motor so if any magnitude
* is set to non-zero then we start the rumble motor. If both are set to
* zero, we stop the rumble motor.
*/
if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
value = 1;
else
value = 0;
/* Locking state.lock here might deadlock with input_event() calls.
* schedule_work acts as barrier. Merging multiple changes is fine. */
wdata->state.cache_rumble = value;
schedule_work(&wdata->rumble_worker);
return 0;
}
static int wiimod_rumble_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
set_bit(FF_RUMBLE, wdata->input->ffbit);
if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
return -ENOMEM;
return 0;
}
static void wiimod_rumble_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
cancel_work_sync(&wdata->rumble_worker);
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_rumble = {
.flags = WIIMOD_FLAG_INPUT,
.arg = 0,
.probe = wiimod_rumble_probe,
.remove = wiimod_rumble_remove,
};
/*
* Battery
* 1 byte of battery capacity information is sent along every protocol status
* report. The wiimote core caches it but we try to update it on every
* user-space request.
* This is supported by nearly every device so it's almost always enabled.
*/
static enum power_supply_property wiimod_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
};
static int wiimod_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct wiimote_data *wdata = power_supply_get_drvdata(psy);
int ret = 0, state;
unsigned long flags;
if (psp == POWER_SUPPLY_PROP_SCOPE) {
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
return 0;
} else if (psp != POWER_SUPPLY_PROP_CAPACITY) {
return -EINVAL;
}
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
wiiproto_req_status(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
wiimote_cmd_wait(wdata);
wiimote_cmd_release(wdata);
spin_lock_irqsave(&wdata->state.lock, flags);
state = wdata->state.cmd_battery;
spin_unlock_irqrestore(&wdata->state.lock, flags);
val->intval = state * 100 / 255;
return ret;
}
static int wiimod_battery_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
struct power_supply_config psy_cfg = { .drv_data = wdata, };
int ret;
wdata->battery_desc.properties = wiimod_battery_props;
wdata->battery_desc.num_properties = ARRAY_SIZE(wiimod_battery_props);
wdata->battery_desc.get_property = wiimod_battery_get_property;
wdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
wdata->battery_desc.use_for_apm = 0;
wdata->battery_desc.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
wdata->hdev->uniq);
if (!wdata->battery_desc.name)
return -ENOMEM;
wdata->battery = power_supply_register(&wdata->hdev->dev,
&wdata->battery_desc,
&psy_cfg);
if (IS_ERR(wdata->battery)) {
hid_err(wdata->hdev, "cannot register battery device\n");
ret = PTR_ERR(wdata->battery);
goto err_free;
}
power_supply_powers(wdata->battery, &wdata->hdev->dev);
return 0;
err_free:
kfree(wdata->battery_desc.name);
wdata->battery_desc.name = NULL;
return ret;
}
static void wiimod_battery_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->battery_desc.name)
return;
power_supply_unregister(wdata->battery);
kfree(wdata->battery_desc.name);
wdata->battery_desc.name = NULL;
}
static const struct wiimod_ops wiimod_battery = {
.flags = 0,
.arg = 0,
.probe = wiimod_battery_probe,
.remove = wiimod_battery_remove,
};
/*
* LED
* 0 to 4 player LEDs are supported by devices. The "arg" field of the
* wiimod_ops structure specifies which LED this module controls. This allows
* to register a limited number of LEDs.
* State is managed by wiimote core.
*/
static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
{
struct device *dev = led_dev->dev->parent;
struct wiimote_data *wdata = dev_to_wii(dev);
int i;
unsigned long flags;
bool value = false;
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev) {
spin_lock_irqsave(&wdata->state.lock, flags);
value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
spin_unlock_irqrestore(&wdata->state.lock, flags);
break;
}
}
return value ? LED_FULL : LED_OFF;
}
static void wiimod_led_set(struct led_classdev *led_dev,
enum led_brightness value)
{
struct device *dev = led_dev->dev->parent;
struct wiimote_data *wdata = dev_to_wii(dev);
int i;
unsigned long flags;
__u8 state, flag;
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev) {
flag = WIIPROTO_FLAG_LED(i + 1);
spin_lock_irqsave(&wdata->state.lock, flags);
state = wdata->state.flags;
if (value == LED_OFF)
wiiproto_req_leds(wdata, state & ~flag);
else
wiiproto_req_leds(wdata, state | flag);
spin_unlock_irqrestore(&wdata->state.lock, flags);
break;
}
}
}
static int wiimod_led_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
struct device *dev = &wdata->hdev->dev;
size_t namesz = strlen(dev_name(dev)) + 9;
struct led_classdev *led;
unsigned long flags;
char *name;
int ret;
led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
if (!led)
return -ENOMEM;
name = (void*)&led[1];
snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = wiimod_led_get;
led->brightness_set = wiimod_led_set;
wdata->leds[ops->arg] = led;
ret = led_classdev_register(dev, led);
if (ret)
goto err_free;
/* enable LED1 to stop initial LED-blinking */
if (ops->arg == 0) {
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
return 0;
err_free:
wdata->leds[ops->arg] = NULL;
kfree(led);
return ret;
}
static void wiimod_led_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->leds[ops->arg])
return;
led_classdev_unregister(wdata->leds[ops->arg]);
kfree(wdata->leds[ops->arg]);
wdata->leds[ops->arg] = NULL;
}
static const struct wiimod_ops wiimod_leds[4] = {
{
.flags = 0,
.arg = 0,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 1,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 2,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 3,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
};
/*
* Accelerometer
* 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
* device, it's mostly cleared to 0. This module parses this data and provides
* it via a separate input device.
*/
static void wiimod_accel_in_accel(struct wiimote_data *wdata,
const __u8 *accel)
{
__u16 x, y, z;
if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
return;
/*
* payload is: BB BB XX YY ZZ
* Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
* contain the upper 8 bits of each value. The lower 2 bits are
* contained in the buttons data BB BB.
* Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
* X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
* accel value and bit 6 is the second bit of the Z value.
* The first bit of Y and Z values is not available and always set to 0.
* 0x200 is returned on no movement.
*/
x = accel[2] << 2;
y = accel[3] << 2;
z = accel[4] << 2;
x |= (accel[0] >> 5) & 0x3;
y |= (accel[1] >> 4) & 0x2;
z |= (accel[1] >> 5) & 0x2;
input_report_abs(wdata->accel, ABS_RX, x - 0x200);
input_report_abs(wdata->accel, ABS_RY, y - 0x200);
input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
input_sync(wdata->accel);
}
static int wiimod_accel_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_accel(wdata, true);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_accel_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_accel(wdata, false);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_accel_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->accel = input_allocate_device();
if (!wdata->accel)
return -ENOMEM;
input_set_drvdata(wdata->accel, wdata);
wdata->accel->open = wiimod_accel_open;
wdata->accel->close = wiimod_accel_close;
wdata->accel->dev.parent = &wdata->hdev->dev;
wdata->accel->id.bustype = wdata->hdev->bus;
wdata->accel->id.vendor = wdata->hdev->vendor;
wdata->accel->id.product = wdata->hdev->product;
wdata->accel->id.version = wdata->hdev->version;
wdata->accel->name = WIIMOTE_NAME " Accelerometer";
set_bit(EV_ABS, wdata->accel->evbit);
set_bit(ABS_RX, wdata->accel->absbit);
set_bit(ABS_RY, wdata->accel->absbit);
set_bit(ABS_RZ, wdata->accel->absbit);
input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
ret = input_register_device(wdata->accel);
if (ret) {
hid_err(wdata->hdev, "cannot register input device\n");
goto err_free;
}
return 0;
err_free:
input_free_device(wdata->accel);
wdata->accel = NULL;
return ret;
}
static void wiimod_accel_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->accel)
return;
input_unregister_device(wdata->accel);
wdata->accel = NULL;
}
static const struct wiimod_ops wiimod_accel = {
.flags = 0,
.arg = 0,
.probe = wiimod_accel_probe,
.remove = wiimod_accel_remove,
.in_accel = wiimod_accel_in_accel,
};
/*
* IR Cam
* Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
* to be initialized with a fairly complex procedure and consumes a lot of
* power. Therefore, as long as no application uses the IR input device, it is
* kept offline.
* Nearly no other device than the normal Wii Remotes supports the IR cam so
* you can disable this module for these devices.
*/
static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
bool packed, unsigned int id)
{
__u16 x, y;
__u8 xid, yid;
bool sync = false;
if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
return;
switch (id) {
case 0:
xid = ABS_HAT0X;
yid = ABS_HAT0Y;
break;
case 1:
xid = ABS_HAT1X;
yid = ABS_HAT1Y;
break;
case 2:
xid = ABS_HAT2X;
yid = ABS_HAT2Y;
break;
case 3:
xid = ABS_HAT3X;
yid = ABS_HAT3Y;
sync = true;
break;
default:
return;
}
/*
* Basic IR data is encoded into 3 bytes. The first two bytes are the
* lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
* of both.
* If data is packed, then the 3rd byte is put first and slightly
* reordered. This allows to interleave packed and non-packed data to
* have two IR sets in 5 bytes instead of 6.
* The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
*/
if (packed) {
x = ir[1] | ((ir[0] & 0x03) << 8);
y = ir[2] | ((ir[0] & 0x0c) << 6);
} else {
x = ir[0] | ((ir[2] & 0x30) << 4);
y = ir[1] | ((ir[2] & 0xc0) << 2);
}
input_report_abs(wdata->ir, xid, x);
input_report_abs(wdata->ir, yid, y);
if (sync)
input_sync(wdata->ir);
}
static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
{
int ret;
unsigned long flags;
__u8 format = 0;
static const __u8 data_enable[] = { 0x01 };
static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
0x00, 0xaa, 0x00, 0x64 };
static const __u8 data_sens2[] = { 0x63, 0x03 };
static const __u8 data_fin[] = { 0x08 };
spin_lock_irqsave(&wdata->state.lock, flags);
if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
if (mode == 0) {
wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
wiiproto_req_ir1(wdata, 0);
wiiproto_req_ir2(wdata, 0);
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
/* send PIXEL CLOCK ENABLE cmd first */
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
wiiproto_req_ir1(wdata, 0x06);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (ret)
goto unlock;
if (wdata->state.cmd_err) {
ret = -EIO;
goto unlock;
}
/* enable IR LOGIC */
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
wiiproto_req_ir2(wdata, 0x06);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (ret)
goto unlock;
if (wdata->state.cmd_err) {
ret = -EIO;
goto unlock;
}
/* enable IR cam but do not make it send data, yet */
ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
sizeof(data_enable));
if (ret)
goto unlock;
/* write first sensitivity block */
ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
sizeof(data_sens1));
if (ret)
goto unlock;
/* write second sensitivity block */
ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
sizeof(data_sens2));
if (ret)
goto unlock;
/* put IR cam into desired state */
switch (mode) {
case WIIPROTO_FLAG_IR_FULL:
format = 5;
break;
case WIIPROTO_FLAG_IR_EXT:
format = 3;
break;
case WIIPROTO_FLAG_IR_BASIC:
format = 1;
break;
}
ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
if (ret)
goto unlock;
/* make IR cam send data */
ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
if (ret)
goto unlock;
/* request new DRM mode compatible to IR mode */
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
unlock:
wiimote_cmd_release(wdata);
return ret;
}
static int wiimod_ir_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
}
static void wiimod_ir_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
wiimod_ir_change(wdata, 0);
}
static int wiimod_ir_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->ir = input_allocate_device();
if (!wdata->ir)
return -ENOMEM;
input_set_drvdata(wdata->ir, wdata);
wdata->ir->open = wiimod_ir_open;
wdata->ir->close = wiimod_ir_close;
wdata->ir->dev.parent = &wdata->hdev->dev;
wdata->ir->id.bustype = wdata->hdev->bus;
wdata->ir->id.vendor = wdata->hdev->vendor;
wdata->ir->id.product = wdata->hdev->product;
wdata->ir->id.version = wdata->hdev->version;
wdata->ir->name = WIIMOTE_NAME " IR";
set_bit(EV_ABS, wdata->ir->evbit);
set_bit(ABS_HAT0X, wdata->ir->absbit);
set_bit(ABS_HAT0Y, wdata->ir->absbit);
set_bit(ABS_HAT1X, wdata->ir->absbit);
set_bit(ABS_HAT1Y, wdata->ir->absbit);
set_bit(ABS_HAT2X, wdata->ir->absbit);
set_bit(ABS_HAT2Y, wdata->ir->absbit);
set_bit(ABS_HAT3X, wdata->ir->absbit);
set_bit(ABS_HAT3Y, wdata->ir->absbit);
input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
ret = input_register_device(wdata->ir);
if (ret) {
hid_err(wdata->hdev, "cannot register input device\n");
goto err_free;
}
return 0;
err_free:
input_free_device(wdata->ir);
wdata->ir = NULL;
return ret;
}
static void wiimod_ir_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->ir)
return;
input_unregister_device(wdata->ir);
wdata->ir = NULL;
}
static const struct wiimod_ops wiimod_ir = {
.flags = 0,
.arg = 0,
.probe = wiimod_ir_probe,
.remove = wiimod_ir_remove,
.in_ir = wiimod_ir_in_ir,
};
/*
* Nunchuk Extension
* The Nintendo Wii Nunchuk was the first official extension published by
* Nintendo. It provides two additional keys and a separate accelerometer. It
* can be hotplugged to standard Wii Remotes.
*/
enum wiimod_nunchuk_keys {
WIIMOD_NUNCHUK_KEY_C,
WIIMOD_NUNCHUK_KEY_Z,
WIIMOD_NUNCHUK_KEY_NUM,
};
static const __u16 wiimod_nunchuk_map[] = {
BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
};
static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s16 x, y, z, bx, by;
/* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
* -----+----------+---------+---------+----+-----+
* 1 | Button X <7:0> |
* 2 | Button Y <7:0> |
* -----+----------+---------+---------+----+-----+
* 3 | Speed X <9:2> |
* 4 | Speed Y <9:2> |
* 5 | Speed Z <9:2> |
* -----+----------+---------+---------+----+-----+
* 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
* -----+----------+---------+---------+----+-----+
* Button X/Y is the analog stick. Speed X, Y and Z are the
* accelerometer data in the same format as the wiimote's accelerometer.
* The 6th byte contains the LSBs of the accelerometer data.
* BC and BZ are the C and Z buttons: 0 means pressed
*
* If reported interleaved with motionp, then the layout changes. The
* 5th and 6th byte changes to:
* -----+-----------------------------------+-----+
* 5 | Speed Z <9:3> | EXT |
* -----+--------+-----+-----+----+----+----+-----+
* 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
* -----+--------+-----+-----+----+----+----+-----+
* All three accelerometer values lose their LSB. The other data is
* still available but slightly moved.
*
* Center data for button values is 128. Center value for accelerometer
* values it 512 / 0x200
*/
bx = ext[0];
by = ext[1];
bx -= 128;
by -= 128;
x = ext[2] << 2;
y = ext[3] << 2;
z = ext[4] << 2;
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
x |= (ext[5] >> 3) & 0x02;
y |= (ext[5] >> 4) & 0x02;
z &= ~0x4;
z |= (ext[5] >> 5) & 0x06;
} else {
x |= (ext[5] >> 2) & 0x03;
y |= (ext[5] >> 4) & 0x03;
z |= (ext[5] >> 6) & 0x03;
}
x -= 0x200;
y -= 0x200;
z -= 0x200;
input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
input_report_abs(wdata->extension.input, ABS_RX, x);
input_report_abs(wdata->extension.input, ABS_RY, y);
input_report_abs(wdata->extension.input, ABS_RZ, z);
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
!(ext[5] & 0x04));
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
!(ext[5] & 0x08));
} else {
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
!(ext[5] & 0x01));
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
!(ext[5] & 0x02));
}
input_sync(wdata->extension.input);
}
static int wiimod_nunchuk_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_nunchuk_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_nunchuk_open;
wdata->extension.input->close = wiimod_nunchuk_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
set_bit(wiimod_nunchuk_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, -120, 120, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT0Y, -120, 120, 2, 4);
set_bit(ABS_RX, wdata->extension.input->absbit);
set_bit(ABS_RY, wdata->extension.input->absbit);
set_bit(ABS_RZ, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_RX, -500, 500, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_RY, -500, 500, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_RZ, -500, 500, 2, 4);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_nunchuk = {
.flags = 0,
.arg = 0,
.probe = wiimod_nunchuk_probe,
.remove = wiimod_nunchuk_remove,
.in_ext = wiimod_nunchuk_in_ext,
};
/*
* Classic Controller
* Another official extension from Nintendo. It provides a classic
* gamecube-like controller that can be hotplugged on the Wii Remote.
* It has several hardware buttons and switches that are all reported via
* a normal extension device.
*/
enum wiimod_classic_keys {
WIIMOD_CLASSIC_KEY_A,
WIIMOD_CLASSIC_KEY_B,
WIIMOD_CLASSIC_KEY_X,
WIIMOD_CLASSIC_KEY_Y,
WIIMOD_CLASSIC_KEY_ZL,
WIIMOD_CLASSIC_KEY_ZR,
WIIMOD_CLASSIC_KEY_PLUS,
WIIMOD_CLASSIC_KEY_MINUS,
WIIMOD_CLASSIC_KEY_HOME,
WIIMOD_CLASSIC_KEY_LEFT,
WIIMOD_CLASSIC_KEY_RIGHT,
WIIMOD_CLASSIC_KEY_UP,
WIIMOD_CLASSIC_KEY_DOWN,
WIIMOD_CLASSIC_KEY_LT,
WIIMOD_CLASSIC_KEY_RT,
WIIMOD_CLASSIC_KEY_NUM,
};
static const __u16 wiimod_classic_map[] = {
BTN_A, /* WIIMOD_CLASSIC_KEY_A */
BTN_B, /* WIIMOD_CLASSIC_KEY_B */
BTN_X, /* WIIMOD_CLASSIC_KEY_X */
BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
};
static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s8 rx, ry, lx, ly, lt, rt;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | RX <5:4> | LX <5:0> |
* 2 | RX <3:2> | LY <5:0> |
* -----+-----+-----+-----+-----------------------------+
* 3 |RX<1>| LT <5:4> | RY <5:1> |
* -----+-----+-----------+-----------------------------+
* 4 | LT <3:1> | RT <5:1> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* All buttons are 0 if pressed
* RX and RY are right analog stick
* LX and LY are left analog stick
* LT is left trigger, RT is right trigger
* BLT is 0 if left trigger is fully pressed
* BRT is 0 if right trigger is fully pressed
* BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
* BZL is left Z button and BZR is right Z button
* B-, BH, B+ are +, HOME and - buttons
* BB, BY, BA, BX are A, B, X, Y buttons
* LSB of RX, RY, LT, and RT are not transmitted and always 0.
*
* With motionp enabled it changes slightly to this:
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | RX <5:4> | LX <5:1> | BDU |
* 2 | RX <3:2> | LY <5:1> | BDL |
* -----+-----+-----+-----+-----------------------+-----+
* 3 |RX<1>| LT <5:4> | RY <5:1> |
* -----+-----+-----------+-----------------------------+
* 4 | LT <3:1> | RT <5:1> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
* is the same as before.
*/
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
lx = ext[0] & 0x3e;
ly = ext[1] & 0x3e;
} else {
lx = ext[0] & 0x3f;
ly = ext[1] & 0x3f;
}
rx = (ext[0] >> 3) & 0x18;
rx |= (ext[1] >> 5) & 0x06;
rx |= (ext[2] >> 7) & 0x01;
ry = ext[2] & 0x1f;
rt = ext[3] & 0x1f;
lt = (ext[2] >> 2) & 0x18;
lt |= (ext[3] >> 5) & 0x07;
rx <<= 1;
ry <<= 1;
rt <<= 1;
lt <<= 1;
input_report_abs(wdata->extension.input, ABS_HAT1X, lx - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT1Y, ly - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
!(ext[4] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
!(ext[4] & 0x40));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
!(ext[4] & 0x20));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
!(ext[4] & 0x10));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
!(ext[4] & 0x08));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
!(ext[4] & 0x04));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
!(ext[4] & 0x02));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
!(ext[5] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
!(ext[5] & 0x40));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
!(ext[5] & 0x20));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
!(ext[5] & 0x10));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
!(ext[5] & 0x08));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
!(ext[5] & 0x04));
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
!(ext[1] & 0x01));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
!(ext[0] & 0x01));
} else {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
!(ext[5] & 0x02));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
!(ext[5] & 0x01));
}
input_sync(wdata->extension.input);
}
static int wiimod_classic_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_classic_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_classic_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_classic_open;
wdata->extension.input->close = wiimod_classic_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
set_bit(wiimod_classic_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
set_bit(ABS_HAT2X, wdata->extension.input->absbit);
set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
set_bit(ABS_HAT3X, wdata->extension.input->absbit);
set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT1Y, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT2X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT2Y, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT3X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT3Y, -30, 30, 1, 1);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_classic_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_classic = {
.flags = 0,
.arg = 0,
.probe = wiimod_classic_probe,
.remove = wiimod_classic_remove,
.in_ext = wiimod_classic_in_ext,
};
/*
* Balance Board Extension
* The Nintendo Wii Balance Board provides four hardware weight sensor plus a
* single push button. No other peripherals are available. However, the
* balance-board data is sent via a standard Wii Remote extension. All other
* data for non-present hardware is zeroed out.
* Some 3rd party devices react allergic if we try to access normal Wii Remote
* hardware, so this extension module should be the only module that is loaded
* on balance boards.
* The balance board needs 8 bytes extension data instead of basic 6 bytes so
* it needs the WIIMOD_FLAG_EXT8 flag.
*/
static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
{
input_report_key(wdata->extension.input, BTN_A,
!!(keys[1] & 0x08));
input_sync(wdata->extension.input);
}
static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
const __u8 *ext)
{
__s32 val[4], tmp, div;
unsigned int i;
struct wiimote_state *s = &wdata->state;
/*
* Balance board data layout:
*
* Byte | 8 7 6 5 4 3 2 1 |
* -----+--------------------------+
* 1 | Top Right <15:8> |
* 2 | Top Right <7:0> |
* -----+--------------------------+
* 3 | Bottom Right <15:8> |
* 4 | Bottom Right <7:0> |
* -----+--------------------------+
* 5 | Top Left <15:8> |
* 6 | Top Left <7:0> |
* -----+--------------------------+
* 7 | Bottom Left <15:8> |
* 8 | Bottom Left <7:0> |
* -----+--------------------------+
*
* These values represent the weight-measurements of the Wii-balance
* board with 16bit precision.
*
* The balance-board is never reported interleaved with motionp.
*/
val[0] = ext[0];
val[0] <<= 8;
val[0] |= ext[1];
val[1] = ext[2];
val[1] <<= 8;
val[1] |= ext[3];
val[2] = ext[4];
val[2] <<= 8;
val[2] |= ext[5];
val[3] = ext[6];
val[3] <<= 8;
val[3] |= ext[7];
/* apply calibration data */
for (i = 0; i < 4; i++) {
if (val[i] <= s->calib_bboard[i][0]) {
tmp = 0;
} else if (val[i] < s->calib_bboard[i][1]) {
tmp = val[i] - s->calib_bboard[i][0];
tmp *= 1700;
div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
tmp /= div ? div : 1;
} else {
tmp = val[i] - s->calib_bboard[i][1];
tmp *= 1700;
div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
tmp /= div ? div : 1;
tmp += 1700;
}
val[i] = tmp;
}
input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
input_sync(wdata->extension.input);
}
static int wiimod_bboard_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_bboard_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static ssize_t wiimod_bboard_calib_show(struct device *dev,
struct device_attribute *attr,
char *out)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int i, j, ret;
__u16 val;
__u8 buf[24], offs;
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
wiimote_cmd_release(wdata);
spin_lock_irq(&wdata->state.lock);
offs = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
wdata->state.calib_bboard[j][i] = buf[offs];
wdata->state.calib_bboard[j][i] <<= 8;
wdata->state.calib_bboard[j][i] |= buf[offs + 1];
offs += 2;
}
}
spin_unlock_irq(&wdata->state.lock);
ret = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
val = wdata->state.calib_bboard[j][i];
if (i == 2 && j == 3)
ret += sprintf(&out[ret], "%04x\n", val);
else
ret += sprintf(&out[ret], "%04x:", val);
}
}
return ret;
}
static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
static int wiimod_bboard_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i, j;
__u8 buf[24], offs;
wiimote_cmd_acquire_noint(wdata);
ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
wiimote_cmd_release(wdata);
offs = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
wdata->state.calib_bboard[j][i] = buf[offs];
wdata->state.calib_bboard[j][i] <<= 8;
wdata->state.calib_bboard[j][i] |= buf[offs + 1];
offs += 2;
}
}
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
ret = device_create_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
if (ret) {
hid_err(wdata->hdev, "cannot create sysfs attribute\n");
goto err_free;
}
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_bboard_open;
wdata->extension.input->close = wiimod_bboard_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
set_bit(EV_KEY, wdata->extension.input->evbit);
set_bit(BTN_A, wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT0Y, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT1Y, 0, 65535, 2, 4);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_file;
return 0;
err_file:
device_remove_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_bboard_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
device_remove_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
}
static const struct wiimod_ops wiimod_bboard = {
.flags = WIIMOD_FLAG_EXT8,
.arg = 0,
.probe = wiimod_bboard_probe,
.remove = wiimod_bboard_remove,
.in_keys = wiimod_bboard_in_keys,
.in_ext = wiimod_bboard_in_ext,
};
/*
* Pro Controller
* Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
* work together with the classic Wii, but only with the new Wii U. However, it
* uses the same protocol and provides a builtin "classic controller pro"
* extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
* We provide all these via a standard extension device as the device doesn't
* feature an extension port.
*/
enum wiimod_pro_keys {
WIIMOD_PRO_KEY_A,
WIIMOD_PRO_KEY_B,
WIIMOD_PRO_KEY_X,
WIIMOD_PRO_KEY_Y,
WIIMOD_PRO_KEY_PLUS,
WIIMOD_PRO_KEY_MINUS,
WIIMOD_PRO_KEY_HOME,
WIIMOD_PRO_KEY_LEFT,
WIIMOD_PRO_KEY_RIGHT,
WIIMOD_PRO_KEY_UP,
WIIMOD_PRO_KEY_DOWN,
WIIMOD_PRO_KEY_TL,
WIIMOD_PRO_KEY_TR,
WIIMOD_PRO_KEY_ZL,
WIIMOD_PRO_KEY_ZR,
WIIMOD_PRO_KEY_THUMBL,
WIIMOD_PRO_KEY_THUMBR,
WIIMOD_PRO_KEY_NUM,
};
static const __u16 wiimod_pro_map[] = {
BTN_EAST, /* WIIMOD_PRO_KEY_A */
BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
BTN_NORTH, /* WIIMOD_PRO_KEY_X */
BTN_WEST, /* WIIMOD_PRO_KEY_Y */
BTN_START, /* WIIMOD_PRO_KEY_PLUS */
BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
BTN_TL, /* WIIMOD_PRO_KEY_TL */
BTN_TR, /* WIIMOD_PRO_KEY_TR */
BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
};
static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s16 rx, ry, lx, ly;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | LX <7:0> |
* -----+-----------------------+-----------------------+
* 2 | 0 0 0 0 | LX <11:8> |
* -----+-----------------------+-----------------------+
* 3 | RX <7:0> |
* -----+-----------------------+-----------------------+
* 4 | 0 0 0 0 | RX <11:8> |
* -----+-----------------------+-----------------------+
* 5 | LY <7:0> |
* -----+-----------------------+-----------------------+
* 6 | 0 0 0 0 | LY <11:8> |
* -----+-----------------------+-----------------------+
* 7 | RY <7:0> |
* -----+-----------------------+-----------------------+
* 8 | 0 0 0 0 | RY <11:8> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
* -----+-----+-----------------+-----------+-----+-----+
* All buttons are low-active (0 if pressed)
* RX and RY are right analog stick
* LX and LY are left analog stick
* BLT is left trigger, BRT is right trigger.
* BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
* BZL is left Z button and BZR is right Z button
* B-, BH, B+ are +, HOME and - buttons
* BB, BY, BA, BX are A, B, X, Y buttons
*
* Bits marked as 0/1 are unknown and never changed during tests.
*
* Not entirely verified:
* CHARG: 1 if uncharging, 0 if charging
* USB: 1 if not connected, 0 if connected
* BATTERY: battery capacity from 000 (empty) to 100 (full)
*/
lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
/* zero-point offsets */
lx -= 0x800;
ly = 0x800 - ly;
rx -= 0x800;
ry = 0x800 - ry;
/* Trivial automatic calibration. We don't know any calibration data
* in the EEPROM so we must use the first report to calibrate the
* null-position of the analog sticks. Users can retrigger calibration
* via sysfs, or set it explicitly. If data is off more than abs(500),
* we skip calibration as the sticks are likely to be moved already. */
if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
if (abs(lx) < 500)
wdata->state.calib_pro_sticks[0] = -lx;
if (abs(ly) < 500)
wdata->state.calib_pro_sticks[1] = -ly;
if (abs(rx) < 500)
wdata->state.calib_pro_sticks[2] = -rx;
if (abs(ry) < 500)
wdata->state.calib_pro_sticks[3] = -ry;
}
/* apply calibration data */
lx += wdata->state.calib_pro_sticks[0];
ly += wdata->state.calib_pro_sticks[1];
rx += wdata->state.calib_pro_sticks[2];
ry += wdata->state.calib_pro_sticks[3];
input_report_abs(wdata->extension.input, ABS_X, lx);
input_report_abs(wdata->extension.input, ABS_Y, ly);
input_report_abs(wdata->extension.input, ABS_RX, rx);
input_report_abs(wdata->extension.input, ABS_RY, ry);
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
!(ext[8] & 0x80));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
!(ext[8] & 0x40));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_TL],
!(ext[8] & 0x20));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
!(ext[8] & 0x10));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
!(ext[8] & 0x08));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
!(ext[8] & 0x04));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_TR],
!(ext[8] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
!(ext[9] & 0x80));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_B],
!(ext[9] & 0x40));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_Y],
!(ext[9] & 0x20));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_A],
!(ext[9] & 0x10));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_X],
!(ext[9] & 0x08));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
!(ext[9] & 0x04));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
!(ext[9] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_UP],
!(ext[9] & 0x01));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
!(ext[10] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
!(ext[10] & 0x01));
input_sync(wdata->extension.input);
}
static int wiimod_pro_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_pro_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_pro_play(struct input_dev *dev, void *data,
struct ff_effect *eff)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
/*
* The wiimote supports only a single rumble motor so if any magnitude
* is set to non-zero then we start the rumble motor. If both are set to
* zero, we stop the rumble motor.
*/
if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
value = 1;
else
value = 0;
/* Locking state.lock here might deadlock with input_event() calls.
* schedule_work acts as barrier. Merging multiple changes is fine. */
wdata->state.cache_rumble = value;
schedule_work(&wdata->rumble_worker);
return 0;
}
static ssize_t wiimod_pro_calib_show(struct device *dev,
struct device_attribute *attr,
char *out)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int r;
r = 0;
r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
return r;
}
static ssize_t wiimod_pro_calib_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int r;
s16 x1, y1, x2, y2;
if (!strncmp(buf, "scan\n", 5)) {
spin_lock_irq(&wdata->state.lock);
wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irq(&wdata->state.lock);
} else {
r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
if (r != 4)
return -EINVAL;
spin_lock_irq(&wdata->state.lock);
wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irq(&wdata->state.lock);
wdata->state.calib_pro_sticks[0] = x1;
wdata->state.calib_pro_sticks[1] = y1;
wdata->state.calib_pro_sticks[2] = x2;
wdata->state.calib_pro_sticks[3] = y2;
}
return strnlen(buf, PAGE_SIZE);
}
static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
wiimod_pro_calib_store);
static int wiimod_pro_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
unsigned long flags;
INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
wdata->state.calib_pro_sticks[0] = 0;
wdata->state.calib_pro_sticks[1] = 0;
wdata->state.calib_pro_sticks[2] = 0;
wdata->state.calib_pro_sticks[3] = 0;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irqrestore(&wdata->state.lock, flags);
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
input_set_drvdata(wdata->extension.input, wdata);
if (input_ff_create_memless(wdata->extension.input, NULL,
wiimod_pro_play)) {
ret = -ENOMEM;
goto err_free;
}
ret = device_create_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
if (ret) {
hid_err(wdata->hdev, "cannot create sysfs attribute\n");
goto err_free;
}
wdata->extension.input->open = wiimod_pro_open;
wdata->extension.input->close = wiimod_pro_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
set_bit(wiimod_pro_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_X, wdata->extension.input->absbit);
set_bit(ABS_Y, wdata->extension.input->absbit);
set_bit(ABS_RX, wdata->extension.input->absbit);
set_bit(ABS_RY, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_X, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_Y, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_RX, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_RY, -0x400, 0x400, 4, 100);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_file;
return 0;
err_file:
device_remove_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_pro_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
cancel_work_sync(&wdata->rumble_worker);
device_remove_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_pro = {
.flags = WIIMOD_FLAG_EXT16,
.arg = 0,
.probe = wiimod_pro_probe,
.remove = wiimod_pro_remove,
.in_ext = wiimod_pro_in_ext,
};
/*
* Builtin Motion Plus
* This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
* disables polling for Motion-Plus. This should be set only for devices which
* don't allow MP hotplugging.
*/
static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_builtin_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_builtin_mp_probe,
.remove = wiimod_builtin_mp_remove,
};
/*
* No Motion Plus
* This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
* disables motion-plus. This is needed for devices that advertise this but we
* don't know how to use it (or whether it is actually present).
*/
static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_no_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_no_mp_probe,
.remove = wiimod_no_mp_remove,
};
/*
* Motion Plus
* The Motion Plus extension provides rotation sensors (gyro) as a small
* extension device for Wii Remotes. Many devices have them built-in so
* you cannot see them from the outside.
* Motion Plus extensions are special because they are on a separate extension
* port and allow other extensions to be used simultaneously. This is all
* handled by the Wiimote Core so we don't have to deal with it.
*/
static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
{
__s32 x, y, z;
/* | 8 7 6 5 4 3 | 2 | 1 |
* -----+------------------------------+-----+-----+
* 1 | Yaw Speed <7:0> |
* 2 | Roll Speed <7:0> |
* 3 | Pitch Speed <7:0> |
* -----+------------------------------+-----+-----+
* 4 | Yaw Speed <13:8> | Yaw |Pitch|
* -----+------------------------------+-----+-----+
* 5 | Roll Speed <13:8> |Roll | Ext |
* -----+------------------------------+-----+-----+
* 6 | Pitch Speed <13:8> | 1 | 0 |
* -----+------------------------------+-----+-----+
* The single bits Yaw, Roll, Pitch in the lower right corner specify
* whether the wiimote is rotating fast (0) or slow (1). Speed for slow
* roation is 8192/440 units / deg/s and for fast rotation 8192/2000
* units / deg/s. To get a linear scale for fast rotation we multiply
* by 2000/440 = ~4.5454 and scale both fast and slow by 9 to match the
* previous scale reported by this driver.
* This leaves a linear scale with 8192*9/440 (~167.564) units / deg/s.
* If the wiimote is not rotating the sensor reports 2^13 = 8192.
* Ext specifies whether an extension is connected to the motionp.
* which is parsed by wiimote-core.
*/
x = ext[0];
y = ext[1];
z = ext[2];
x |= (((__u16)ext[3]) << 6) & 0xff00;
y |= (((__u16)ext[4]) << 6) & 0xff00;
z |= (((__u16)ext[5]) << 6) & 0xff00;
x -= 8192;
y -= 8192;
z -= 8192;
if (!(ext[3] & 0x02))
x = (x * 2000 * 9) / 440;
else
x *= 9;
if (!(ext[4] & 0x02))
y = (y * 2000 * 9) / 440;
else
y *= 9;
if (!(ext[3] & 0x01))
z = (z * 2000 * 9) / 440;
else
z *= 9;
input_report_abs(wdata->mp, ABS_RX, x);
input_report_abs(wdata->mp, ABS_RY, y);
input_report_abs(wdata->mp, ABS_RZ, z);
input_sync(wdata->mp);
}
static int wiimod_mp_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
__wiimote_schedule(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_mp_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
__wiimote_schedule(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->mp = input_allocate_device();
if (!wdata->mp)
return -ENOMEM;
input_set_drvdata(wdata->mp, wdata);
wdata->mp->open = wiimod_mp_open;
wdata->mp->close = wiimod_mp_close;
wdata->mp->dev.parent = &wdata->hdev->dev;
wdata->mp->id.bustype = wdata->hdev->bus;
wdata->mp->id.vendor = wdata->hdev->vendor;
wdata->mp->id.product = wdata->hdev->product;
wdata->mp->id.version = wdata->hdev->version;
wdata->mp->name = WIIMOTE_NAME " Motion Plus";
set_bit(EV_ABS, wdata->mp->evbit);
set_bit(ABS_RX, wdata->mp->absbit);
set_bit(ABS_RY, wdata->mp->absbit);
set_bit(ABS_RZ, wdata->mp->absbit);
input_set_abs_params(wdata->mp,
ABS_RX, -16000, 16000, 4, 8);
input_set_abs_params(wdata->mp,
ABS_RY, -16000, 16000, 4, 8);
input_set_abs_params(wdata->mp,
ABS_RZ, -16000, 16000, 4, 8);
ret = input_register_device(wdata->mp);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->mp);
wdata->mp = NULL;
return ret;
}
static void wiimod_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->mp)
return;
input_unregister_device(wdata->mp);
wdata->mp = NULL;
}
const struct wiimod_ops wiimod_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_mp_probe,
.remove = wiimod_mp_remove,
.in_mp = wiimod_mp_in_mp,
};
/* module table */
static const struct wiimod_ops wiimod_dummy;
const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
[WIIMOD_KEYS] = &wiimod_keys,
[WIIMOD_RUMBLE] = &wiimod_rumble,
[WIIMOD_BATTERY] = &wiimod_battery,
[WIIMOD_LED1] = &wiimod_leds[0],
[WIIMOD_LED2] = &wiimod_leds[1],
[WIIMOD_LED3] = &wiimod_leds[2],
[WIIMOD_LED4] = &wiimod_leds[3],
[WIIMOD_ACCEL] = &wiimod_accel,
[WIIMOD_IR] = &wiimod_ir,
[WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
[WIIMOD_NO_MP] = &wiimod_no_mp,
};
const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
[WIIMOTE_EXT_NONE] = &wiimod_dummy,
[WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
[WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
[WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
[WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
[WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
};
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